I have just bought ChrisTv Professional v.5.75 from the last of "August the 25th, year 2013" and I just accidently yesterday uninstalled it from my Windows 8.1 system and when I´ve tryed to reinstall it back to my Windows again and opened the ChrisTv icon from my desktop after reinstalling it this window popped up saying that a newer version of ChrisTv (v.6.00) has just arrived. And so, because I´ve already purcased with my credit-card the version 5.75 and I might not have to pay for the other upgraded Christv Professional v. 6.00.